Patents Represented by Attorney, Agent or Law Firm A. R. Stempel
  • Patent number: 5552384
    Abstract: Disclosed herein is a combination of an antiviral nucleoside analog and a ribonucleotide reductase inhibiting peptide derivative. The combination is useful for combatting herpes infections.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: September 3, 1996
    Assignee: Bio-Mega Boehringer Ingelheim Research Inc.
    Inventors: Robert D eziel, Yvan Guindon
  • Patent number: 5545640
    Abstract: Disclosed herein are compounds which inhibit human immunodeficiency virus (HIV) protease activity and inhibit HIV replication in human cells. Thus, the compounds are indicated for the treatment of HIV infections. The compounds can be represented by the formula ##STR1## wherein X is a terminal group, for example, an aryloxycarbonyl, an alkanoyl or an arylalkyl carbamoyl; A is absent or an amino acid or a derived amino acid; either R.sup.1 or R.sup.2 is hydrogen while the other is alkyl or R.sup.1 and R.sup.2 are joined to form a cyclohexane; Q is hydrogen, hydroxy, halo or lower alkoxy; and Y is a terminal group, for example, an alkylamino, alkoxy or an optionally substituted anilino.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: August 13, 1996
    Assignee: Bio-Mega/Boehringer Ingeleheim Research Inc.
    Inventors: Pierre L. Beaulieu, Ingrid Guse
  • Patent number: 5541163
    Abstract: Disclosed herein are compounds of the formula:A--N(R.sup.1)C(O)CH.sub.2 CHR.sup.2 C(O)--Bwherein A is R.sup.3 R.sup.4 NC(O)CH.sub.2 wherein, for example, R.sup.3 is hydrogen or alkyl and R.sup.4 is hydrogen, alkyl or a substituted alkyl such as 2-(2-pyridinyl)ethyl, or R.sup.3 and R.sup.4 together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino, morpholino or thiomorpholino; R.sup.1 is, for example, benzyl, alkyl or a substituted alkyl such as cyclohexylmethyl; R.sup.2 is, for example, alkyl, cycloalkylmethyl, 1H-imidazol-4-ylmethyl, 4-thiazolylmethyl or (2-amino-4-thiazolyl)methyl; and B is a renin substrate transition state analog, for example, [1(S)-(cyclohexylmethyl)-2(R),3(S)-dihydroxy-5-methylhexyl]amino. The compounds inhibit renin activity and are indicated for the treatment of hypertension and congestive heart failure.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: July 30, 1996
    Assignee: Bio-Mega/Boehringer Ingelheim Research Inc.
    Inventors: Pierre Lavall ee, Bruno Simoneau
  • Patent number: 5527923
    Abstract: The present invention relates to a new process for preparing enantiomerically pure diarylprolinols, especially (R)-(+)- or (S)-(-)-2-(diphenylhydroxymethyl)-pyrrolidine (R)-(+)- or (S)-(-)-.alpha.,.alpha.-diphenyl-(2-pyrrolidinyl)-methanol) starting from proline.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: June 18, 1996
    Assignee: Boehringer Ingelheim KG
    Inventors: Franz D. Klingler, Rainer Sobotta
  • Patent number: 5523315
    Abstract: Disclosed herein are compounds of the formula:A--N(R.sup.1)C(O)CH.sub.2 CHR.sup.2 C(O)--Bwherein A is various oxygen-bearing radicals; for example, HO--CH(R.sup.3)CH.sub.2 wherein R.sup.3 is, inter alia, hydrogen, lower alkyl, lower cycloalkyl or phenyl; or HO--CR.sup.5 (R.sup.6)CH.sub.2 wherein each of R.sup.5 and R.sup.6 is lower alkyl, or R.sup.5 and R.sup.6 together with the carbon atom to which they are attached form a 1,1-(lower cycloalkanediyl); R.sup.1 is, for example, benzyl, alkyl or a substituted alkyl such as cyclohexylmethyl; R.sup.2 is, for example, cyclo-alkylmethyl, 1H-imidazol-4-ylmethyl, 4-thiazolylmethyl or (2-amino-4-thiazolyl)methyl; and B is a renin substrate transition state mimic, for example, [1(S)-(cyclohexylmethyl)-2(R),3(S)-dihydroxy-5-methylhexyl]amino. The compounds inhibit renin activity and are indicated for the treatment of hypertension and congestive heart failure.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: June 4, 1996
    Assignee: Bio-Mega/Boehringer Ingelheim Research Inc.
    Inventors: Paul C. Anderson, Teddy Halmos, Grace L. Jung, Marc-Andre Poupart, Bruno Simoneau
  • Patent number: 5519138
    Abstract: A phenylalkyl derivative of the formula ##STR1## wherein R.sub.a to R.sub.f, A and B are substituents and n is the number 0 or 1.These phenylalkyl derivatives possess angiotensin antagonist activity.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: May 21, 1996
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Uwe Ries, Manfred Reiffen, Wolfgang Grell, Norbert Hauel, Berthold Narr, Armin Heckel, Andreas Bomhard, Jacques van Meel, Wolfgang Wienen, Michael Entzeroth
  • Patent number: 5519036
    Abstract: The invention relates to cyclic derivatives of general formula ##STR1## wherein R.sub.a, R.sub.b, X and Y are as defined in claim 1, the tautomers, the stereoisomers including the mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with organic or inorganic acids or bases, which have valuable pharmacological properties, preferably aggregation-inhibiting effects, pharmaceutical compositions containing the compounds and processes for preparing them.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 21, 1996
    Assignee: Karl Thomae GmbH
    Inventors: F. Himmelsbach, Helmut Pieper, Volkhard Austel, Gunter Linz, Brian Guth, Thomas Muller, Johannes Weisenberger
  • Patent number: 5516773
    Abstract: The use of a compound of formula ##STR1## wherein the substituents are defined herein and the physiologically acceptable acid addition salts thereof for treating high blood pressure and cardiac insufficiency.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: May 14, 1996
    Assignee: Dr. Karl Thomae GmbH
    Inventor: Peter Rose
  • Patent number: 5504244
    Abstract: Disclosed are novel alkylarylketocarboxylic acids and 5-substituted tetrazoles represented by the formula ##STR1## wherein Z is aryl or an alkyl of the structure ##STR2## W is a carboxyl moiety or a tetrazole moiety bound to Z at the 5-position of the tetrazole;R.sub.1 is C.sub.4 -C.sub.12 alkyl where Z is aryl and X is oxygen or is C.sub.5 -C.sub.12 alkyl where Z is alkyl and where Z is aryl and X is a bond;R.sub.2 and R.sub.3 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, hydroxy, C.sub.1 -C.sub.4 alkoxy, halogen, trihalomethyl, nitro, cyano or C.sub.1 -C.sub.4 acyl;R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are each independently hydrogen or C.sub.1 -C.sub.4 alkyl or R.sub.4 and R.sub.6 or R.sub.5 and R.sub.7 can combine to form a carbocyclic ring;X is oxygen, or a bond at the ortho or para position;m is 0, 1 or 2; andn is 0 or 1, and nontoxic, pharmaceutically acceptable addition salts and carboxylic acid esters thereof.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: April 2, 1996
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Karl D. Hargrave, John P. Devlin
  • Patent number: 5502036
    Abstract: Disclosed herein are pentapeptide derivatives of the formula X--NR.sup.1 --CH(R.sup.2)--C(W)--NH--CR.sup.3 (R.sup.4)--C(W.sup.2)--NR.sup.5 --CH CH.sub.2 C(O)--Y!--C(W.sup.3)--NH--CR.sup.6 -- CR.sup.7 (R.sup.8)--COOH!--C(W.sup.4)--NH--CR.sup.9 (R.sup.10)--Z wherein X is a terminal group, for example, alkanoyl or phenylalkanoyl radicals, R.sup.1 is hydrogen, alkyl or phenylalkyl, R.sup.2, R.sup.4 and R.sup.10 are selected from amino acid or derived amino acid residues, R.sup.3, R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are hydrogen or alkyl or R.sup.7 and R.sup.8 are joined to form a cycloalkyl, W.sup.1, W.sup.2, W.sup.3 and W.sup.4 are oxo or thioxo, Y is, for example, an alkoxy or a mono or disubstituted amino, and Z is a terminal group, for example, COOH or CH.sub.2 OH. The derivatives are useful for treating herpes infections.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: March 26, 1996
    Assignee: BioMega Boehringer Ingelheim Research Inc.
    Inventors: Julian Adams, Pierre L. Beaulieu, Robert De/ ziel, John DiMaio, Louis Grenier, Pierre Lavalle/ e, Neil Moss
  • Patent number: 5488136
    Abstract: Racemates are obtained from non-racemic 3-oxocyclopentane or 3-oxocyclohexane carboxylic acids or their esters by esterification and ketalization of the non-racemic acid with orthoformic acid ester in an alocohol, racemization and hydrolysis of the product obtained with an alcoholate and isolation of the racemate.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: January 30, 1996
    Assignee: Boehringer Ingelheim KG
    Inventor: Rainer Sobotta
  • Patent number: 5484771
    Abstract: Described herein are peptide derivatives of the formula R.sup.1 NH--CO--Q--C(O)--NR.sup.2 --CH[CH.sub.2 C(O)--Y]--C(O)--NH--CH[CR.sup.3 (R.sup.4)--COOH]--C(W)--NH--CHR.sup.5 --Z wherein R.sup.1 is an optionally substituted alkyl or optionally substituted phenylalkyl, R.sup.2 is hydrogen or alkyl, R.sup.3 and R.sup.4 each independently is hydrogen or alkyl, or R.sup.3 and R.sup.4 are joined to form a cycloalkyl. R.sup.5 is alkyl, cycloalkyl or (cycloalkyl)alkyl, Q is a divalent radical, for example, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH-- or 1,2-cyclohexanediyl, which serves as a two carbon spacer. W is oxo or thioxo, Y is, for example, an alkoxy or a monosubstituted or disubsdtuted ammo, and Z is a terminal unit, for example, hydrogen, COOH or CH.sub.2 OH. The derivatives are useful for treating herpes infections.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: January 16, 1996
    Assignee: Bio-Mega/Boehringer Ingelheim Research Inc.
    Inventors: Pierre L. Beaulieu, Robert Deziel, Neil Moss
  • Patent number: 5482948
    Abstract: This invention relates to pyridyl derivatives of the formula ##STR1## wherein X, Y, A, n and R.sub.3 to R.sub.8 are defined hereinbelow, the enantiomers thereof, the cis- and trans-isomers thereof, which have antithrombotic pharmaceutical activity.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: January 9, 1996
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Rainer Soyka, Thomas Muller, Johannes Weisenberger
  • Patent number: 5478578
    Abstract: In order to control and optimize the amount of inhalable active substance released when drugs are administered as inhalation powders, the invention calls for the use of auxiliaries consisting of mixtures of coarser particles (average particle size>20 .mu.m) and finer particles (average particle size<10 .mu.m).
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: December 26, 1995
    Assignee: Boehringer Ingelheim KG
    Inventors: Klaus Arnold, Peter Grass, Adolf Knecht, Robert Roos, Gerhard Sluke, Herbet Thieme, Joachim Wenzel
  • Patent number: 5478942
    Abstract: The invention relates to cyclic urea derivatives of general formula ##STR1## wherein R.sub.a, R.sub.b, X and Y are as defined herein, pharmaceutical compositions containing the derivatives and processes for preparing them.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: December 26, 1995
    Assignee: Karl Thomae GmbH
    Inventors: Frank Himmelsbach, Helmut Pieper, Volkhard Austel, Guenter Linz, Thomas Mueller, Johannes Weisenberger, Wolfgang Eisert
  • Patent number: 5476778
    Abstract: A viral agent that will mimic "mystery swine" disease has been isolated and described, together with a method of growing the viral agent in vitro, and a method of attenuating the virus for vaccine preparation.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: December 19, 1995
    Assignee: Boehringer Ingelheim Animal Health, Inc.
    Inventors: Danny W. Chladek, David E. Gorcyca, Louis L. Harris
  • Patent number: 5468766
    Abstract: Pharmaceutical compositions are described which contain 1,5,6,7-tetrahydro-4H-indazol-4-ones of the formula ##STR1## some of these substances themselves being new. The pharmaceutical compositions may be used as analgesics, antipyretics and antiphlogistics.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: November 21, 1995
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Wolfgang Eberlein, Wolfhard Engel, Gerhard Mihm, Klaus Rudolf, Gunther Engelhardt
  • Patent number: 5462744
    Abstract: The invention relates to an improved transdermal administration of pharmacologically active compounds.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: October 31, 1995
    Assignee: Boehringer Ingelheim KG
    Inventors: Arun R. Gupte, Uwe Rohr, Bernd Zierenberg
  • Patent number: 5457205
    Abstract: Compounds of formula ##STR1## where the substituents are as defined herein, are disclosed, which compounds are useful in the treatment of diabetes and obesity, among other uses.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: October 10, 1995
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Manfred Reiffen, Rudolph Hurnaus, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht
  • Patent number: 5457247
    Abstract: A novel process for preparing enantiomerically pure (S)- or (R)-but-3-en-2-ol compounds includes the following reaction steps:(a) reacting an alkyl ester of D- or L-lactic acid with a hydropyran compound to obtain a lactate ester having a hydropyranyl ether group,(b) reducing the lactate ester with an aluminum hydride at a temperature below 0.degree. C. to obtain a propionaldehyde having a hydropyranyl ether group,(c) reacting the propionaldehyde with an alkyl phosphonium salt to obtain a 3-butene having a hydropyranyl ether group, and(d) cleaving the hydropyranyl ether group to prepare the enantiomerically pure (S)- or (R)- but-3-en-2-ol.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: October 10, 1995
    Assignee: Boehringer Ingelheim KG
    Inventors: Franz D. Klingler, Manfred Psiorz